Springsteen's four-CD set of previously unreleased songs reminds us why we love his music

You are sitting in the kitchen of Bruce Springsteen's New Jersey home when you hear a muffled roar outside. The Boss is back. He has pulled up in his driveway astride his Triumph motorcycle, and now he's walking in the front door. His face is ruddy from the wind and the sun, and he's smiling broadly. His new boxed set, Tracks (Columbia), featuring 66 songs, 56 of them previously unreleased, is due in stores this Tuesday, and Springsteen is eager to talk about it. The songs on the four-CD set span his career; a great many of them are strong songs,...